1、 ETSI EN 301 893 V1.7.1 (2012-06) Broadband Radio Access Networks (BRAN); 5 GHz high performance RLAN; Harmonized EN covering the essential requirements of article 3.2 of the R Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI
2、Secretariat. Latest updates are available on the ETSI Web server (http:/ipr.etsi.org). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the update
3、s on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Harmonized European Standard (EN) has been produced by ETSI Technical Committee Broadband Radio Access Networks (BRAN). The present document has been produced by ETSI in response to a mand
4、ate from the European Commission issued under Directive 98/34/EC i.1 as amended by Directive 98/48/EC i.1. The title and reference to the present document are intended to be included in the publication in the Official Journal of the European Union of titles and references of Harmonized Standard unde
5、r the Directive 1999/5/EC 1. See article 5.1 of Directive 1999/5/EC 1 for information on presumption of conformity and Harmonised Standards or parts thereof the references of which have been published in the Official Journal of the European Union. The requirements relevant to Directive 1999/5/EC 1 a
6、re summarised in annex A. National transposition dates Date of adoption of this EN: 30 May 2012 Date of latest announcement of this EN (doa): 31 August 2012 Date of latest publication of new National Standard or endorsement of this EN (dop/e): 28 February 2013 Date of withdrawal of any conflicting N
7、ational Standard (dow): 31 December 2014 Introduction The present document is part of a set of standards developed by ETSI and is designed to fit in a modular structure to cover all radio and telecommunications terminal equipment within the scope of the R Uncertainties in the measurement of mobile r
8、adio equipment characteristics; Part 1“. 3 ETSI TR 100 028-2 (V1.4.1): “Electromagnetic compatibility and Radio spectrum Matters (ERM); Uncertainties in the measurement of mobile radio equipment characteristics; Part 2“. 4 CISPR 16-1-1 (2010-11 Ed. 3.1 Consolidated Edition with am1): “Specification
9、for radio disturbance and immunity measuring apparatus and methods - Part 1-1: Radio disturbance and immunity measuring apparatus - Measuring apparatus“. 5 ECC/DEC/(04)08 ECC Decision of 9 July 2004 on the harmonised use of the 5 GHz frequency bands for the implementation of Wireless Access Systems
10、including Radio Local Area Networks (WAS/RLANs) (30/10/2009). 6 Commission Decision 2005/513/EC of 11 July 2005 on the harmonised use of radio spectrum in the 5 GHz frequency band for the implementation of wireless access systems including radio local area networks (WAS/RLANs). ETSI ETSI EN 301 893
11、V1.7.1 (2012-06) 97 Commission Decision 2007/90/EC of 12 February 2007 amending Decision 2005/513/EC on the harmonized use of radio spectrum in the 5 GHz frequency band for the implementation of Wireless Access Systems including Radio Local Area Networks (WAS/RLANs). 8 Void. 9 IEEE Std. 802.11-2007:
12、 “IEEE Standard for Information Technology - Telecommunications and information exchange between systems - Local and metropolitan area networks - Specific requirements - Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications“. 10 IEEE Std. 802.11n-2009: “IEEE Stand
13、ard for Information Technology - Telecommunications and information exchange between systems - Local and Metropolitan networks - Specific requirements-Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications. Amendment 5: Enhancements for Higher Throughput“. 2.2 Info
14、rmative references The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. i.1 Directive 98/48/EC of the European Parliament and of the Council of 20 July 1998 amending Directive 98/34/EC layi
15、ng down a procedure for the provision of information in the field of technical standards and regulations. i.2 IEEE Std. 802.11ac: “Draft Standard for Information Technology - Telecommunications and information exchange between systems - Local and Metropolitan networks - Specific requirements - Part
16、11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications. Amendment 5: Enhancements for Higher Throughput for Operation in Bands below 6 GHz“. i.3 ETSI EG 201 399 (V2.1.1): “Electromagnetic compatibility and Radio spectrum Matters (ERM); A guide to the production of Harmo
17、nized Standards for application under the R and 5 470 MHz to 5 725 MHz adaptive equipment: equipment operating in an adaptive mode adaptive mode: mechanism by which equipment can adapt to its environment by identifying other transmissions present in the band ad-hoc mode: operating mode in which an R
18、LAN device establishes a temporary wireless connection with other RLAN devices without a controlling network infrastructure antenna array: two or more antennas connected to a single device and operating simultaneously antenna assembly: combination of the antenna (integral or dedicated), its coaxial
19、cable and if applicable, its antenna connector and associated switching components NOTE 1: This term (antenna assembly) refers to an antenna connected to one transmit chain. ETSI ETSI EN 301 893 V1.7.1 (2012-06) 10NOTE 2: The gain of an antenna assembly (G) in dBi, does not include the additional ga
20、in that may result out of beamforming. available channel: channel identified as available for immediate use as an Operating Channel NOTE: Usable Channels whose nominal bandwidth falls completely within the band 5 150 MHz to 5 250 MHz can be considered as Available Channels without further testing. b
21、eamforming gain: additional (antenna) gain realized by using beamforming techniques in smart antenna systems NOTE: Beamforming gain as used in the present document, does not include the gain of the antenna assembly. burst: period during which radio waves are intentionally transmitted, preceded and s
22、ucceeded by periods during which no intentional transmission is made channel: minimum amount of spectrum used by a single RLAN device NOTE: An RLAN device is permitted to operate (transmit/receive) in one or more adjacent or non-adjacent channels simultaneously. EXAMPLE: For the purpose of the prese
23、nt document, an IEEE 802.11n 10 device operating in a 40 MHz mode may be considered as operating in 2 adjacent 20 MHz channels simultaneously. channel plan: combination of the centre frequencies and for each of the centre frequencies, the declared nominal bandwidth(s) clear channel assessment: mecha
24、nism used by an equipment to identify other transmissions in the channel combined equipment: any combination of non-radio equipment that requires a plug-in radio device to offer full functionality dedicated antenna: antenna external to the equipment, using an antenna connector with a cable or a wave
25、-guide and which has been designed or developed for one or more specific types of equipment NOTE: It is the combination of dedicated antenna and radio equipment that is expected to be compliant with the regulations. energy detect: mechanism used by an adaptive system to determine the presence of ano
26、ther device operating on the channel based on detecting the signal level of that other device environmental profile: range of environmental conditions under which equipment within the scope of the present document is required to comply with the provisions of the present document Frame Based Equipmen
27、t (FBE): equipment where the transmit/receive structure is not directly demand-driven but has fixed timing NOTE: I.e. it may be altered by configuration changes but there is always a minimum Idle Period following a transmit period host equipment: any equipment which has complete user functionality w
28、hen not connected to the radio equipment part and to which the radio equipment part provides additional functionality and to which connection is necessary for the radio equipment part to offer functionality integral antenna: antenna designed as a fixed part of the equipment (without the use of an ex
29、ternal connector) which cannot be disconnected from the equipment by a user with the intent to connect another antenna NOTE: An integral antenna may be fitted internally or externally. In the case where the antenna is external, a non-detachable cable or wave-guide can be used. Listen Before Talk (LB
30、T): mechanism by which an equipment applies clear channel assessment (CCA) before using the channel Load Based Equipment (LBE): equipment where the transmit/receive structure is not fixed in time but demand-driven ETSI ETSI EN 301 893 V1.7.1 (2012-06) 11manufacturer: company that has manufactured th
31、e equipment and who submits it for test NOTE: Alternatively, the importer or any other person or entity that submits the equipment for test can be considered as the manufacturer for the purpose of the present document. master mode: mode which relates to the DFS functionality where the RLAN device us
32、es a Radar Interference Detection function and controls the transmissions of RLAN devices operating in slave mode NOTE: In this mode it is able to select a channel and initiate a network by sending enabling signals to other RLAN devices. An RLAN network always has at least one RLAN device operating
33、in master mode when operating in the bands 5 250 MHz to 5 350 MHz and 5 470 MHz to 5 725 MHz. multi-radio equipment: radio, host or combined equipment using more than one radio transceiver operating channel: Available Channel on which the RLAN has started transmissions NOTE: An Operating Channel bec
34、omes again an Available Channel if the RLAN stopped all transmissions on that channel and no radar signal was detected by the In-Service Monitoring. plug-in radio device: radio equipment module intended to be used with or within host, combined or multi-radio equipment, using their control functions
35、and power supply receive chain: receiver circuit with an associated antenna NOTE: Two or more receive chains are combined in a smart antenna system. RLAN devices: 5 GHz high performance wireless access systems (WAS) including RLAN equipment simulated radar burst: series of periodic radio wave pulses
36、 for test purposes slave mode: mode which relates to the DFS functionality where the transmissions of the RLAN are under control of an RLAN device operating in master mode NOTE: An RLAN device in slave mode may use a Radar Interference Detection function. smart antenna systems: equipment that combin
37、es multiple transmit and/or receive chains with a signal processing function to increase the throughput and/or to optimize its radiation and/or reception capabilities NOTE: E.g. techniques such as spatial multiplexing, beamforming, cyclic delay diversity, MIMO, etc. stand-alone radio equipment: equi
38、pment that is intended primarily as communications equipment and that is normally used on a stand-alone basis sub-band: portion of the 5 GHz RLAN bands (see definition for “5 GHz RLAN bands“) total occupied bandwidth: total of the Nominal Channel Bandwidths in case of simultaneous transmissions in a
39、djacent or non-adjacent channels NOTE: The Total Occupied Bandwidth may change with time/payload. transmit chain: transmitter circuit with an associated antenna NOTE: Two or more transmit chains are combined in a smart antenna system. Transmit Power Control (TPC): technique in which the transmitter
40、output power is controlled resulting in reduced interference to other systems unavailable channel: channel which cannot be considered by the RLAN device for a certain period of time (Non Occupancy Period) after a radar signal was detected on that channel unusable channel: channel from the declared c
41、hannel plan which may be declared as permanently unavailable due to one or more radar detections on the channel ETSI ETSI EN 301 893 V1.7.1 (2012-06) 12usable channel: any channel from the declared channel plan, which may be considered by the RLAN for possible use, unless it is precluded by either:
42、1) the intended outdoor usage of the RLAN; or 2) previous detection of a radar on the channel (Unavailable Channel or Unusable Channel); or 3) national regulations; or 4) the restriction to only operate in the band 5 150 MHz to 5 250 MHz for RLAN devices without a radar detection capability. 3.2 Sym
43、bols For the purposes of the present document, the following symbols apply: A Measured power output AC Alternating CurrentTchNumber of active transmit chains B Radar burst period ChrChannel in which radar test signals are inserted to simulate the presence of a radar D Measured power density dBm dB r
44、elative to 1 milliwatt DC Direct Current E Field strengthEoReference field strength fcCarrier frequency G Antenna gainGHz GigaHertz Hz Hertz kHz kiloHertz L Radar burst length MHz MegaHertz ms millisecondMS/s Mega Samples per second mW milliWatt n Number of channels PHCalculated e.i.r.p. at highest
45、power level PLCalculated e.i.r.p. at lowest power level Pburst RMS (mean) power over the transmission burst PD Calculated power density Pd Detection Probability R Distance RchNumber of active receive chains RoReference distance S0 Signal power T0 Time instant T1 Time instant T2 Time instant T3 Time
46、instant W Radar pulse width x Observed duty cycle Y Beamforming (antenna) gain ETSI ETSI EN 301 893 V1.7.1 (2012-06) 133.3 Abbreviations For the purposes of the present document, the following abbreviations apply: ACK Acknowledgement BIT Burst Interval Time CAC Channel Availability Check CCA Clear C
47、hannel AssessmentCISPR International Special Committee on Radio Interference (Comit International Spcial des Perturbations Radiolectriques) CSD Cyclic Shift Diversity dB/div dB per division DFS Dynamic Frequency Selection e.i.r.p. equivalent isotropically radiated power e.r.p. effective radiated pow
48、er EMC Electro-Magnetic Compatibility HT20 High Throughput in a 20 MHz channel HT40 High Throughput in a 40 MHz channel IEEE Institute of Electrical and Electronic Engineers LBT Listen Before Talk MCS Modulation Coding Scheme MIMO Multiple Input, Multiple Output NACK Not Acknowledged PPB Pulses Per
49、Burst ppm parts per million PPS Pulses Per Second PRF Pulse Repetition Frequency R provide on aggregate a near-uniform loading of the spectrum (Uniform Spreading). The DFS function as described in the present document is not tested for its ability to detect frequency hopping radar signals. Whilst the DFS function described in this clause defines conditions under which the equipment may transmit, transmissions are only allowed providing they are not prohibited by either the Medium Access Protocol requirement in clause 4.8 or the Adaptivity requireme
